ucm: do not cache all control devices in get_card_long_name()

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/src/ucm/parser.c b/src/ucm/parser.c
index 75b0419..7f7e258 100644 (file)
--- a/src/ucm/parser.c
+++ b/src/ucm/parser.c
@@ -1453,6 +1453,9 @@ static int get_card_long_name(snd_use_case_mgr_t *mgr, char *longname)
        while (card >= 0) {
                char name[32];
 
+               /* most probably, we do not need to cache all CTL devices here */
+               uc_mgr_free_ctl_list(mgr);
+
                sprintf(name, "hw:%d", card);
                err = get_card_info(mgr, name, &ctl, info);
 
@@ -1472,6 +1475,8 @@ static int get_card_long_name(snd_use_case_mgr_t *mgr, char *longname)
                }
        }
 
+       uc_mgr_free_ctl_list(mgr);
+
        return -1;
 }
 
@@ -1577,8 +1582,10 @@ __longname:
 __parse:
        err = parse_master_file(uc_mgr, cfg);
        snd_config_delete(cfg);
-       if (err < 0)
+       if (err < 0) {
+               uc_mgr_free_ctl_list(uc_mgr);
                uc_mgr_free_verb(uc_mgr);
+       }
 
        return err;